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Get that 31 tooth pinion off there and put a much smaller pinion in it's place. Over gearing a brushless combo is a recipe for speed runs only and an abnormal amount of cogging and the potential for overheating a motor and potentially ruining it.
Try running a 19 tooth pinion, instead

Get that 31 tooth pinion off there and put a much smaller pinion in it's place. Over gearing a brushless combo is a recipe for speed runs only and an abnormal amount of cogging and the potential for overheating a motor and potentially ruining it.
Try running a 19 tooth pinion, instead

Yes, overgearing can have an effect on cogging. I wouldn't worry abou the spur yet. Swap the pinhole to see if it helps. I'm almost scared that your brushless combo is shot. I've seen moderate cogging from over gearing, and I've seen cogging so bad that it eventually fried my esc.

Yes, overgearing can have an effect on cogging. I wouldn't worry abou the spur yet. Swap the pinhole to see if it helps. I'm almost scared that your brushless combo is shot. I've seen moderate cogging from over gearing, and I've seen cogging so bad that it eventually fried my esc.

if the motor or esc were shot, would it still move? I mean it does still go but not nearly like it should.

when a motor reaches temps above 200 degrees F, there's something about the magnets coming unglued in the motor that can cause it to not turn under power.

I thought I had esc issues from excessive cogging. I kept trying to make the truck go and the ESC poofed. I sent both items back to Traxxas and they told me the motor was at fault. Before the esc burned, the truck was extremely coggy. My worries are that even though you are running a nimh pack, that gearing combo is too close to the recipe an owner would use to get 65mph with a pede and a 3S lipo.

Keep us posted on the situation after you swap gears, but if the cogging continues, I would contact your seller about it or call traxxas for some replacements, at a reasonable discount. But i'm telling you, that gearing is nothing anyone around here would attempt with a nimh pack and definiteyl not in a 'bashing' type fashion. 31/83 is for speed runs, only.

I have son of digger and a stampede. It is the monster wheels from the digger that grip the ground. My stampede pulls wheelies stock just like my son uva digger. I put one set of diggs in the back of both and pedes on both fronts for steering. Good combo.
hope it helps

when a motor reaches temps above 200 degrees F, there's something about the magnets coming unglued in the motor that can cause it to not turn under power. Neodymium magnets like those in the Velineon motor permanently lose their magnetism when subjected to temperatures in excess of 200°F. Strong magnets make good motors, weak magnets make slow ones. Excessive heat can also crack or shatter the rotor magnet.

I thought I had esc issues from excessive cogging. I kept trying to make the truck go and the ESC poofed. I sent both items back to Traxxas and they told me the motor was at fault. Before the esc burned, the truck was extremely coggy. My worries are that even though you are running a nimh pack, that gearing combo is too close to the recipe an owner would use to get 65mph with a pede and a 3S lipo.

Keep us posted on the situation after you swap gears, but if the cogging continues, I would contact your seller about it or call traxxas for some replacements, at a reasonable discount. But i'm telling you, that gearing is nothing anyone around here would attempt with a nimh pack and definiteyl not in a 'bashing' type fashion. 31/83 is for speed runs, only.

Bad performance, stuttering. Unfortunately, those symptoms can result from other problems as well.
However, if the former owner ran 31/83 with close to stock-sized tires on anything but flat pavement...it doesn't sound good.

(Calibrating your ESC and transmitter)
Read through all of the programming steps before you begin. If you get
lost during programming or receive unexpected results, simply unplug
the battery, wait a few seconds, plug the battery back in, and start over.
1. Connect a fully charged battery pack to the VXL-3s.
2. Turn on the transmitter (with the throttle at neutral).
3. Press and hold the EZ-Set button (A). The LED will
first turn green and then red. Release the
EZ-Set button.
4. When the LED blinks RED ONCE, pull the
throttle trigger to the full throttle position
and hold it there (B).
5. When the LED blinks RED TWICE, push the
throttle trigger to the full reverse and hold it
there (C).
6. When the LED blinks GREEN ONCE,
programming is complete. The LED will
then shine green or red (depending on Low-Voltage
Detection setting) indicating the VXL-3s is on and at
neutral (D).